Tool holder



FIG. 1 is a perspective view of a tool holder showing my new design, with its tool holder retaining bar shown in its closed position;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a perspective view thereof with its tool holder retaining bar shown in its opened position. 

The ornamental design for a tool holder, as shown and described. 